Add "PRIVATE" to the enum names of some private Pepper networking APIs:

remoting/client/plugin/pepper_util.cc

Index: remoting/client/plugin/pepper_util.cc
diff --git a/remoting/client/plugin/pepper_util.cc b/remoting/client/plugin/pepper_util.cc
index c230842a6118f73c8648941dc3aff2cca025f422..3dc8e81634188769a99a3ec1aaa2e881b8dd68f6 100644
--- a/remoting/client/plugin/pepper_util.cc
+++ b/remoting/client/plugin/pepper_util.cc
@@ -65,11 +65,11 @@ bool PpAddressToSocketAddress(const PP_NetAddress_Private& pp_address,
 
   if (result) {
     switch (pp::NetAddressPrivate::GetFamily(pp_address)) {
-      case PP_NETADDRESSFAMILY_IPV4:
+      case PP_NETADDRESSFAMILY_PRIVATE_IPV4:
         address->SetIP(talk_base::IPAddress(
             *reinterpret_cast<in_addr*>(addr_storage)));
         break;
-      case PP_NETADDRESSFAMILY_IPV6:
+      case PP_NETADDRESSFAMILY_PRIVATE_IPV6:
         address->SetIP(talk_base::IPAddress(
             *reinterpret_cast<in6_addr*>(addr_storage)));
         break;